http://www.schneier.com/essay-309.html
The surveillance camera industry rebuttal:
http://www.securityinfowatch.com/surveillance-industry-responds-bruce-schneier
I disagree with Schneier if he is advocating exclusively more manpower and little or no cameras. One of the retorts to Schneier refers to video footage as a superior forensic tool. Another retort mentions live cameras as a way for first responders to go straight to where the action is, especially in the case of the Virginia Tech shooter incident.
I'd like to dwell on video footage as a forensic tool, and make the extreme claim that video footage is always superior to someone's recollection and verbal account. The less forensic investigation relies on data stored in human brain cells, the better. Video or audio media is not inclined to subjective filtering, cultural preferences, or dishonesty. Humans are. Long live machines, our more honest and reliable resource.
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